About

About Mainstream Fluid and Air Mainstream Fluid & Air is a fan manufacturer specializing in high-efficiency fan arrays for retrofits and new construction. Our solutions are designed for reliability, energy savings, and fast installation. We also offer cooling tower fans and coils, supporting a wide range of HVAC applications across commercial and industrial sectors. With a focus on proactive upgrades and modern ventilation technology, Mainstream helps facilities stay ahead of aging equipment and performance challenges.